App Overview

Wrist Pipe icon

Wrist Pipe

David Freeman · Music

Wrist Pipe is the best app to keep you in tune on the go! With its extensive customization options, large selection of instruments, and support for set lists, you’ll never need another pitch pipe again!

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.6
8 ratings · Top 15%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Wrist Pipe: map the core Music workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement personalized recommendations and advanced search options.

Assumption to check: Limited music discovery features compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Add features to share playlists on social media.

Assumption to check: No social sharing options for playlists

Validate with people who use this workflow before building.

Hypothesis 3

Offer a limited-time free trial for offline listening.

Assumption to check: Offline listening only available with paid tiers

Validate with people who use this workflow before building.

Hypothesis 4

Introduce user profiles with followers and favorites.

Assumption to check: Lack of user engagement features

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Wrist Pipe is the best app to keep you in tune on the go! With its extensive customization options, large selection of instruments, and support for set lists, you’ll never need another pitch pipe again! Show Your True Colors! Wrist Pipe can be customized to match your style. So you can go for an understated look, match your pipe to your outfit, or show your pride! No More Memorizing Pitches Fumbling with a pitch pipe can slow down your performance. With Wrist Pipe, you can create predefined set lists. Then just tap the name of the song to hear the correct pitch! Instruments Wrist Pipe is equiped with several midi instruments and octave controls so you can pick the sound that works best for you! Wrist Pipe also features samples from a real pitch pipe for a natural tuning experience! Wrist Pipe on your Watch Face When a song strikes, you need a pitch as quickly as possible. Wrist Pipe’s complications allow you to jump right into the app, and look great on any watch face! It's Great to be a Barbershopper! Wrist Pipe comes with over 100 hand-designed themes for the top BHS choruses!

Written user reviews are not shown here. Check current App Store reviews >

Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Supabase
react-native-reanimated
@supabase/supabase-js
react-native-vector-icons
BUILD KIT DIFFICULTY
Starter

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.